Nokia 3555 - Manual (Page 109)

108
Talk and standby times
Battery talk and standby times are estimates only and depend on signal strength,
network conditions, features used, battery age and condition, temperatures to which
battery is exposed, use in digital mode, and many other factors. The amount of time a
device is used for calls will affect its standby time. Likewise, the amount of time that
the device is turned on and in the standby mode will affect its talk time.
Talk time: up to 3 hours
Standby time: up to 13 days in UMTS mode.